ICCAS OpenIR
Blue electroluminescent polymers with dopant-host systems and molecular dispersion features: polyfluorene as the deep blue host and 1,8-naphthalimide derivative units as the light blue dopants
Liu, Jun1,2; Cao, Jianxin1,2; Shao, Shiyang1,2; Xie, Zhiyuan1; Cheng, Yanxiang1; Geng, Yanhou1; Wang, Lixiang1; Jing, Xiabin1; Wang, Fosong1
2008
Source PublicationJOURNAL OF MATERIALS CHEMISTRY
ISSN0959-9428
Volume18Issue:14Pages:1659-1666
AbstractWe developed a series of highly efficient blue electroluminescent polymers with dopant-host systems and molecular dispersion features by selecting 1,8-naphthalimide derivatives as the light blue emissive dopant units, choosing polyfluorene as the deep blue emissive polymer host and covalently attaching the dopant units to the side chain of the polymer host. The polymers' EL spectra exhibited both deep blue emission from the polymer host and light blue emission from the dopant units because of the energy transfer and charge trapping from the polymer host to the dopant units. By modifying the chemical structures of the dopant units, we controlled the energy transfer and charge trapping from the polymer host to the dopant units and consequently tuned the emission colors of the resulting polymers. Thermally annealed single-layer devices (ITO/PEDOT/polymer/Ca/Al) based on these polymers emitted deep blue light with a luminous efficiency of 2.89 cd A(-1), a power efficiency of 2.01 lmW(-1) and CIE coordinates (0.16, 0.17), or emitted sky-blue light with a luminous efficiency of 6.84 cd A(-1), a power efficiency of 4.28 lm W-1 and CIE coordinates (0.15, 0.22). Their excellent EL performances were due to the energy transfer and charge trapping from the polymer host to the highly fluorescent dopant units.
DOI10.1039/b716234k
Indexed BySCI
Language英语
WOS IDWOS:000254634500008
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63748
Collection中国科学院化学研究所
Corresponding AuthorWang, Lixiang
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Liu, Jun,Cao, Jianxin,Shao, Shiyang,et al. Blue electroluminescent polymers with dopant-host systems and molecular dispersion features: polyfluorene as the deep blue host and 1,8-naphthalimide derivative units as the light blue dopants[J]. JOURNAL OF MATERIALS CHEMISTRY,2008,18(14):1659-1666.
APA Liu, Jun.,Cao, Jianxin.,Shao, Shiyang.,Xie, Zhiyuan.,Cheng, Yanxiang.,...&Wang, Fosong.(2008).Blue electroluminescent polymers with dopant-host systems and molecular dispersion features: polyfluorene as the deep blue host and 1,8-naphthalimide derivative units as the light blue dopants.JOURNAL OF MATERIALS CHEMISTRY,18(14),1659-1666.
MLA Liu, Jun,et al."Blue electroluminescent polymers with dopant-host systems and molecular dispersion features: polyfluorene as the deep blue host and 1,8-naphthalimide derivative units as the light blue dopants".JOURNAL OF MATERIALS CHEMISTRY 18.14(2008):1659-1666.
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